Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
SK3118.000 Rittal Hygrostat 24-230 V 1~ 12-75 V (DC) WHD: 71x71x33.5mm
Rittal SK 3118.000 enclosure hygrostat with an adjustable 50–100% relative humidity range, designed to control heaters and fans to help prevent condensation inside industrial electrical enclosures.
£96.59
Why Choose the Rittal SK 3118.000 Hygrostat?
The Rittal SK 3118.000 is a compact and reliable enclosure hygrostat designed to control relative humidity inside industrial electrical enclosures and help prevent condensation on sensitive assemblies and electronic components. It can switch connected enclosure heaters and/or fans when the preset relative humidity threshold is exceeded, helping maintain suitable environmental conditions for installed equipment.
With an adjustable 50–100% relative humidity setting range and an approximate 4% switching difference, the SK 3118.000 provides straightforward humidity-dependent control without requiring a complex electronic control system. Its single-pole change-over quick-break contact allows suitable climate-control equipment to be switched automatically in response to changing enclosure conditions.
The compact 71 × 71 × 33.5 mm housing is designed for flexible installation on a vertical or horizontal 35 mm support rail to EN 50 022, with alternative snap fastening possible using the supplied adaptor. Its broad electrical compatibility makes the SK 3118.000 suitable for a wide range of industrial control panels and machinery enclosures.
Key Advantages
- Reliable relative humidity control for industrial electrical enclosures.
- Helps prevent condensation on electrical and electronic components.
- Adjustable 50–100% relative humidity setting range.
- Approximate 4% switching difference for dependable humidity control.
- Automatically switches suitable enclosure heaters and/or fans.
- Compact 71 × 71 × 33.5 mm dimensions.
- Flexible mounting on vertical or horizontal 35 mm support rails.
- Time-saving external screw-terminal connection.
Key Features
- Rittal SK enclosure hygrostat.
- 50–100% RH adjustable setting range.
- Approx. 4% switching difference.
- Single-pole change-over quick-break contact.
- AC contact load up to 5 A, with 0.2 A specified for inductive loads at cos φ = 0.6.
- DC contact load up to 20 W.
- Designed to control heaters and/or fans according to enclosure humidity.
- Compatible with 35 mm support rail mounting to EN 50 022.
- Snap fastening in suitable enclosure sections or on the mounting plate using the supplied adaptor.
- Compact 33.5 mm housing depth.
- RAL 7035 enclosure finish.
Reliable Humidity Control for Electrical Enclosures
Humidity inside an electrical enclosure can lead to condensation when environmental conditions change, potentially affecting electrical connections, electronic assemblies and other sensitive components. The Rittal SK 3118.000 provides automatic humidity-dependent switching so that suitable heating or ventilation equipment can be activated when the preset relative humidity level is exceeded.
By controlling a heater and/or fan, the hygrostat helps reduce relative humidity and minimise the risk of condensation. Its mechanical switching arrangement, adjustable humidity setting and flexible mounting options make it particularly suitable for industrial control panels, switchgear, machinery enclosures and automation installations.
Typical Applications
- Industrial electrical control enclosures.
- Automation and PLC control panels.
- Machine-building electrical cabinets.
- Switchgear and distribution enclosures.
- Enclosure heater control systems.
- Ventilation and enclosure fan control.
- Condensation prevention for electronic equipment.
- Industrial installations exposed to changing humidity conditions.
Technical Specifications
Tick the specs you need, then view products that match.
| Contacts | 1 C/O | |
|---|---|---|
| Temperature Range | 50–100 °C | |
| Device Type | Hygrostat | |
| Control Type | Hygrostat | |
| Manufacturer | Rittal | |
| Series | SK Climate Control Accessories | |
| Model | SK 3118.000 | |
| Product type | Enclosure hygrostat | |
| Setting range | 50–100% relative humidity | |
| Switching difference | approx. 4% | |
| Contact configuration | Single-pole change-over contact, quick-break | |
| Permissible AC contact load | 5 A; 0.2 A inductive load at cos φ = 0.6 | |
| Permissible DC contact load | max. 20 W | |
| Rated operating voltage | 24–230 V AC, 1~; 12–75 V DC | |
| Mounting | Vertical or horizontal 35 mm support rail to EN 50 022 / snap fastening with adaptor | |
| Dimensions (W × H × D) | 71 × 71 × 33.5 mm | |
| Depth | 33.5 mm | |
| Colour | RAL 7035 | |
| Weight | approx. 0.1 kg | |
| Pack quantity | 1 | |
| EAN | 4028177036734 |
Frequently Asked Questions
What is the Rittal SK 3118.000 used for?
The Rittal SK 3118.000 is used to monitor relative humidity and switch a connected heater and/or fan when the preset humidity level inside an electrical enclosure is exceeded, helping prevent condensation.
What is the humidity setting range of the SK 3118.000?
The Rittal SK 3118.000 has an adjustable setting range of 50–100% relative humidity, with an approximate switching difference of 4%.
What supply voltage does the Rittal SK 3118.000 support?
The SK 3118.000 is designed for a broad range of industrial electrical systems, with rated operating voltage versions specified for 24–230 V AC, single-phase and 12–75 V DC.
How is the Rittal SK 3118.000 mounted?
The hygrostat can be mounted vertically or horizontally on a 35 mm support rail to EN 50 022. Snap fastening in a suitable enclosure section or on a mounting plate is also possible using the supplied adaptor.
How does the SK 3118.000 help prevent condensation?
When relative humidity rises above the selected threshold, the hygrostat switches connected climate-control equipment such as a heater and/or fan. This helps reduce relative humidity and prevents condensation from forming on assemblies and electronic components.
Trusted Enclosure Climate Control from Rittal
Rittal SK climate-control components are designed for dependable environmental management inside industrial electrical enclosures, helping machine builders, panel builders and automation engineers protect sensitive equipment against temperature, humidity and condensation-related problems.
